(19)

(11)

EP 2 663 768 A1

(12)

(43) Date of publication: 20.11.2013 Bulletin 2013/47 (21) Application number: 12734002.4 (22) Date of filing: 09.01.2012

(51) International Patent Classification (IPC):  F03D 3/00(2006.01) F03D 7/06(2006.01) F03D 3/06(2006.01) (86) International application number: PCT/SE2012/050006 (87) International publication number: WO 2012/096616 (19.07.2012 Gazette 2012/29)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR (30) Priority: 10.01.2011 SE 1100015 (71) Applicant: Sea Twirl AB 412 60 Goteborg (SE)	(72) Inventor: EHRNBERG, Daniel SE-31196 Heberg (SE) (74) Representative: Bergquist, Kjell Gunnar  Westpatent AB Almekärrsvägen 11 443 39 Lerum 443 39 Lerum (SE)